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Finding the Fourth Proportional to 330,080.39, 495,040.93 and 152,416.61

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Solution

The fourth proportional to 330,080.39, 495,040.93 and 152,416.61 is: 228,588.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,080.39 : 495,040.93 = 152,416.61 : x
  2. Step 2: Convert to fraction form
    330,080.39/495,040.93 = 152,416.61/x
  3. Step 3: Cross multiply
    330,080.39x = 495,040.93 × 152,416.61
  4. Step 4: Simplify right side
    330,080.39x = 75,452,460,361.85
  5. Step 5: Solve for x
    x = 75,452,460,361.85/330,080.39
  6. Step 6: Final answer
    x = 228,588.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.